JP2000237336A - Worker protecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure safety of a worker at the time of working on barge cargo. SOLUTION: In this worker protecting device 1 for securing the safety of a worker working on the barge cargo on a load-carrying platform, a rail 8 is fixed along the longitudinal direction of this barge cargo over the barge cargo, a traveling vehicle 28 is fitted in the state of being freely travelable along the rail 8 and a supporting means 36 is suspended at this vehicle 28 to stop the rapid movement of the worker to support the worker. The rail 8 is provided with a horizontal direction moving mechanism 10 moving in a horizontal direction by following the movement of the worker working on the barge cargo and the mechanism 10 is provided with a movement adjusting device 18 adjusting the movement of horizontal moving by balance weights 20, 21 moving in a vertical direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a worker working on a load (including a case where a driver works as a worker).
The present invention relates to a worker safety device for preventing a fall and a fall of a vehicle.

[0002]

2. Description of the Related Art After a load, for example, a load to be loaded on a bed of a vehicle such as a truck or a trailer, is loaded on the bed, an operator rides on the load and performs lashing or lashing. Work such as seating for protection (hereinafter referred to as “consolidation work”) is performed. Conventionally, when performing compaction work, there is a risk of falling over on the load or falling off from the load.Therefore, for security reasons, measures such as tightly attaching a fall prevention net around the vehicle, etc. Be taken.

[0003]

However, the fall prevention net merely reduces the impact of the fall or fall of the worker, but cannot prevent the fall or fall itself. In addition, it takes time and labor for the installation by one worker. Therefore, conventionally, there has been a demand for a measure for simply and surely protecting the worker when the worker rides on the cargo and performs the compacting work.

An object of the present invention is to prevent a worker from falling or falling when working on a load.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a guide means provided in one direction above a load, a travel means provided movably along the guide means, and the travel means. And a support means for suspending the sudden movement of the worker who is suspended on the cargo and working on the load and supporting the worker.

[0006] The guide means is provided in one direction above the load. Since the traveling means is provided so as to be able to travel along the guide means, when the operator moves on the load in one direction, the operator can easily follow the operator. In this case, if, for example, a traveling rail is provided as the guide means, the traveling means travels along the traveling rail, and the traveling means travels easily by using a traveling vehicle having traveling wheels.
The support means is suspended from the traveling means, and the worker is tied to the support means with, for example, a rope, so that if the worker moves in one direction, the traveling vehicle easily moves along the guide means. I do. At this time, when a sudden force is applied to the supporting means by a sudden movement such as falling or falling on the load of the worker, the supporting means locks and fixes the rope. Therefore, the worker is temporarily stopped from moving. After that, when the worker regains calmness and can perform slow motion, the lock of the support means is automatically released, the worker can move normally or can move, and continue the subsequent work can do.

Further, the guide means has a horizontal moving mechanism which horizontally moves in a direction orthogonal to the one direction following a movement of an operator working on the cargo. The load has a certain width as well as a certain length, and the worker moves in one direction of the load, for example, in the longitudinal direction of the load or in a direction orthogonal to one direction, for example, in the width direction, and moves to a required location. Packing or seating work.
At this time, the worker moves in the vertical direction, the longitudinal direction and the width direction of the cargo, but the horizontal movement of the worker is followed by the horizontal movement mechanism of the guide means. Then, the guide means is moved in the horizontal direction, and the movement in the vertical direction is responded to the worker's up and down movement by unwinding and entering the unlocked rope housed in the support means. At this time, the horizontal movement of the guide means may be performed while rotating in the horizontal plane, or may be directly moved in the width direction in the horizontal plane. By such a planar movement and a vertical movement, an operator can easily and safely carry out packing or seating work.

[0008] The horizontal movement mechanism includes a movement adjusting device for adjusting the movement of the horizontal movement by a weight moving in the vertical direction. The guide means is provided so as to easily move following the movement of the operator, but requires a certain degree of stable movement. That is, if the guide means moves too fast, the worker may be swung around, or the guide means may collide with a support column or the like and cause damage. Therefore, the movement adjusting device of the horizontal movement mechanism adjusts the speed of the horizontal movement by the weight moving in the vertical direction. At the beginning of the movement, a certain amount of inertia resistance is given to gradually increase the speed, and during the movement, a moderate frictional resistance is given and the movement is made smooth so that the movement is stable. By this movement, the worker can work safely and reliably.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the worker safety device according to the present invention will be described below in detail with reference to the drawings. In addition,
1 to 8, the same or equivalent structures or working parts are denoted by the same reference numerals.

FIG. 7 is a perspective view showing the relationship between the work of compacting a load loaded on the bed of a truck and a trailer and the worker safety device. The worker safety device 1 according to the present embodiment includes:
For example, the safety of a worker 50 who works on a load 48 loaded on the loading platform 44 of the truck / trailer 42 is ensured. In this case, the load 48 is a long material, for example, a steel bar, a steel pipe, or the like, and the worker 50 compacts the bundle of the load 48 by tightening the bundle with a steel band or the like. And as described below,
The worker 50 is connected to the support means 36 of the worker safety device 1 via the safety belt 51.

FIG. 1 is a side view showing an embodiment of the worker safety device according to the present invention. FIG. 2 is a plan view of FIG. FIG. 3 is a front view of FIG.

In FIG. 1, the worker safety device 1 is provided, for example, in a direction above a load loaded on the bed of the truck / trailer 42, in this case, along a longitudinal direction 46 (FIG. 2). A rail 8 as a means,
A traveling vehicle 28 as traveling means provided to be able to travel freely along the rail 8; and a support means 36 suspended by the traveling vehicle 28 to stop a sudden movement of the worker and support the worker.
And

Further, the rail 8 has a horizontal moving mechanism 10 which horizontally moves in a width direction 47 orthogonal to the longitudinal direction following the movement of an operator 50 working on the cargo 48 of the truck / trailer.

As shown in FIG. 2, the horizontal moving mechanism 10
Is a link mechanism that has three arms 12 that support the rails 8 on the distal end side and that are rotatably supported on the main beam 2 by hinges 13 on the proximal end side, and that can protrude from the main beam 2 toward the center of the cargo. is there. The main body beam 2 is supported by two support columns 6.

As shown in FIG. 1, the base end of the support column 6
It is fixed to the seat member 7. The seat member 7 may be fixed to the base floor 55 and the worker safety device 1 may be fixed. Alternatively, the worker member 1 may be fixed without fixing the seat member 7 to the base floor 55.

As shown in FIG. 3, the horizontal moving mechanism 10
Includes a motion adjusting device 18 for adjusting the horizontal movement by the balance weights 20 and 21 moving in the vertical direction. The support column 6 is reinforced by a reinforcing brace 35.

As shown in FIG. 2, the motion adjusting device 18
The balancer has two balancer wires 23 and 24 having one end fixed to a predetermined point 12a of the central arm 12, and balance weights 20 and 21 (FIG. 3) fixed to the other ends of the balancer wires 23 and 24. The direction of the balancer wires 23, 24 is changed via pulleys 32, 33, 34, respectively, and is fixed to the balance weights 20, 21. A stopper 14 is attached to the main body beam 2, and the rail 8 is pivoted toward the center of the load. When the rail 8 is substantially perpendicular to the main body beam 2, the central arm contacts and stops. In addition, when the rail 8 is stored at the time of loading by a crane or the like or when the compaction operation is completed,
Since it is necessary to set the stopper 14 at a predetermined position with respect to the pull wire fulcrums 32, 33, and 34 that enable the arm 12 to rotate forward, the stopper 14 has a predetermined length. Abuts and stops.

FIG. 4 is an enlarged top view of the worker safety device. The main beam 2 is fixed to the upper part of the support column 6, and the arm 12 is rotatably fixed to the main beam 2 via the shaft 3. A rail 8 is rotatably mounted near the tip of the arm 12. The cross section of the rail 8 is a so-called channel steel shape, and the lower central portion is opened over the entire longitudinal direction. The wheels 29 of the traveling vehicle 28 are mounted on the horizontal pieces 8 a of the left and right grooves 9. The traveling vehicle 28 travels.
A U-shaped hook 30 is attached to the traveling vehicle 28.

FIG. 5 is a front view showing an installed state of the traveling vehicle and the support means. The traveling vehicle 28 travels along the rail 8 and a pair of four wheels 29 in front and behind the chassis 28a.
And a U-shaped hook 30 at the lower center of the chassis 28a. The support means 36 has an upper hook 38
On the hook 30 of the traveling vehicle. Further, the support means 36 has a telescopic wire rope 37, and a safety hook 39 which is hung on a worker's safety belt 51 (shown in FIG. 7) is provided at the lower end of the wire rope 37. The payout of the wire rope 37 is carried out when the wire rope 37 is drawn at a low speed, and is locked when the wire rope 37 is drawn at a high speed. That is,
The support means 36 is locked when an impact is applied to the wire rope 37. As the support means 36 for performing such an operation, a commercially available one can be used.

The operation of the worker safety device 1 according to the present embodiment having the above structure will be described with reference to FIG.

FIG. 6 is a perspective view for explaining the operation of the worker safety device. The rail 8 is provided above the load 48 along the longitudinal direction 46 of the load 48. Traveling vehicle 28
Is provided so as to run along the rail 8. The support means 36 is suspended from the traveling vehicle 28 and the support means 36
Hook 39 of the wire rope 37 fed from
Is connected to the safety belt 51 of the worker 50. At this time, when the worker 50 erroneously transmits a sudden force to the support means 36 by sudden movement such as falling or falling on the load 48, the support means 36 locks and fixes the wire rope 37. Therefore, the worker 50 is temporarily stopped from moving. Then, when the worker 50 becomes calm and can perform a normal movement thereafter, the lock of the support means 36 is released, and the worker 50 can perform a normal movement or an operation. Can be performed safely and reliably.

Further, the load 48 has not only a certain length but also a constant width, and the worker 50 moves in the longitudinal direction 46 and the width direction 47 of the load to consolidate a required portion. . At this time, with respect to the horizontal movement of the worker 50, the rail 8 rotates and moves as indicated by an arrow 53 following the movement of the worker 50 by the horizontal moving mechanism 10 of the rail 8. . Therefore, the worker 50 can easily and safely perform the compacting work.

The rail 8 is provided so as to easily move following the movement of the worker 50, but requires a certain degree of stable movement. That is, if the rail 8 moves too fast, the worker 50 may be swung. In addition, the rails 8 may collide with the support columns 6 and the like, causing damage. Therefore, the movement adjusting device 18 (not shown) of the horizontal movement mechanism 10 gradually applies a certain inertia resistance at the beginning of the movement to the movement of the horizontal movement by the balance weight (not shown) which moves in the vertical direction, and gradually moves. Increase the speed, move at a constant speed during the movement, give an appropriate frictional resistance, move it smoothly and move it to make it move stably.

Next, an operation procedure for carrying out a work for compacting a load will be described in an individual paragraph with reference to FIG. Locks the arm 8 by storing the rail 8 in the starting position.
(Not shown). (2) Stop and stop the vehicle on the guide line (25m truck / trailer and pallet do not need to be stopped). (3) Load the cargo with a crane or the like. (4) Using a hook from the ground, hook the hook (rope ring) 39 of the support means and pull it down. (5) The hook 39 of the supporting means is set on the safety belt 51 of the worker. (6) Remove the arm movement lock (not shown) attached to the support column 6. (7) Ascend to the cargo 48 using the specified lifting equipment 45. (8) Pull the wire rope 37 of the support means, and pull out the rail 8 above the load 48. (9) Perform each operation (do not turn your back to the opening). (10) When the worker 50 moves, he pulls the wire rope 37 of the support means and walks while moving the traveling vehicle 28. After the work is completed, the user goes down to the ground using the specified lifting / lowering equipment 45, and removes the wire rope 37 of the supporting means. (11) Lock and fix the rail 8 at the retracted position.

FIG. 8 shows another embodiment of the worker safety device according to the present invention, wherein (A) is a front view and (B) is a side view. The worker safety device 1 according to this another embodiment has a structure shown in FIGS.
7, one of the two balance weights 20, 21 in the embodiment described in FIG.
Is replaced with the winding device 40, and the rail 8 is moved in the horizontal direction by turning a handle 41 provided on the winding device 40. By moving the rail 8 by the winding device 40, the movement of the rail 8 is stabilized, and the rail 8 can be stably stopped at an arbitrary position.
The structure and operation of the other parts in FIG. 8 are the same as those of the embodiment shown in FIGS.

The worker safety device 1 of the above two embodiments
When the worker 50 moves freely on the cargo, the support means 36 can be moved in a plane (in the longitudinal direction 46 and the width direction 47 of the cargo) without restricting the behavior.
The position of the support means 36 and the worker 50 is kept vertical, and the function of the normal support means 36 works. Further, the worker safety device 1 can be installed even if the space between the load 48 and the rail 8 is relatively small.

Although the present invention has been described in detail with reference to the illustrated embodiments, the present invention is not limited to those embodiments only, and various modifications can be made without departing from the spirit of the present invention. In addition, it goes without saying that a wide variety of modifications can be made.

[0028]

According to the worker safety device of the present invention, it is possible to prevent a worker from falling or falling when working on a load.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a worker safety device according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a front view of FIG. 1;

FIG. 4 is an enlarged top view of the worker safety device.

FIG. 5 is a front view showing an installation state of the traveling vehicle and the support means shown in FIG.

FIG. 6 is a perspective view illustrating the operation of the worker safety device.

FIG. 7 is a perspective view showing the relationship between the work of compacting a load loaded on the bed of a truck / trailer and the worker safety device.

FIG. 8 shows another embodiment of the worker safety device according to the present invention, wherein (A) is a front view and (B) is a side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Worker protection device 8 Rail (guide means) 10 Horizontal moving mechanism 18 Motion adjusting device 20, 21 Balance weight (weight) 28 Traveling vehicle (traveling means) 36 Support means 46 Longitudinal direction (one direction) 47 Width direction (orthogonal) Direction) 48 cargo 50 workers

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Atsushi Okada, Inventor 3884-6-201, Honjo, Yawatanishi-ku, Kitakyushu-shi, Fukuoka (72) Inventor Yasutoshi Kiyota 1-1 Tobata-cho, Tobata-ku, Kitakyushu-shi, Fukuoka F Term in Yawata Works (Reference) 2E184 JA05 KA09 KA11 LA03 LA08 LA17 LA19

Claims (3)

[Claims] 1. A guide means provided in one direction above a load, a travel means provided to be able to run along the guide means, and a worker suspended by the travel means and working on the load. An operator safety device comprising: support means for stopping the sudden movement and supporting the operator. 2. The apparatus according to claim 1, wherein the guide means has a horizontal movement mechanism that horizontally moves in a direction orthogonal to the one direction following a movement of an operator working on the cargo. Worker security device. 3. The worker safety device according to claim 2, wherein the horizontal movement mechanism includes a movement adjustment device that adjusts the movement of the horizontal movement by a weight that moves in a vertical direction.